But, just wondering. Do you want the TM or the JG model? I mean the JG is a direct clone meaning it will accept the same upgrades as the TM but costs a fraction of the price. So, essentially you'll be able to put in more for upgrades. That said the TM has nice stock internals and a superior hopup. But most people that upgrade their sniper rifles ditch the stock internals anyway. So, if you clarify this I'll continue with some needed upgrades.

Also, just want to know what YOU know about the gun and its upgrades? I ask this because the more you know the easier it will be to explain certain things.

Note: you can get away with the stock hopup, but for the sake of further upgrades the PDI one is preferred. Also you may or may not need a new cylinder. But I know PDI makes another version of this unit that allows the use of the stock TM cylinder head.

- A quality inner barrel. 6.03 is known as the "sweet spot" when it comes to tight bore barrels. Prometheus is you want to spend more, Madbull if your on a budget.

R-hop: kind of the more basic of the _-hop family. Lots of different options, but to many for me to name/explain. Requires sanding and cutting of the patch to install as well as glueing and other tweaking.

ER-hop: "E" for extended or elongated. Basically it will be longer then your stock hopup window. This means you need to re-cut your window in order to fit in the patch. Not all that easy, but if you have the right equipment it will be a better choice then just a regular R-hop.

- Next you need to decide if you want to catch your piston at 45 degrees or 90 degrees. For 90 you'll be looking at a zero or V trigger. The advantages of these are you save yourself the hastle of possible slam firings (meaning your sears won't strip causing your piston to slam back forward). These aren't the only brands out there but these are the best known.

- Spring and Spring guide. Choose a spring that will give you your preferred FPS goal. Remember higher FPS doesn't really mean longer range. With the spring guide try to match it with the spring brand. PDI springs have a different diameter then most other springs therefore the PDI spring guide should be used.

- Cylinder head. If you get the PDI chamber you'll get the included cylinder head that works with it. Other then that its not really needed.

PART FOUR, DO IT YOURSELF MODS

I'm not going to cover everything, but here's a few you can do to help out your rifle that much more.

- Barrel spacers. Sure you can buy them, but if you have some tape or a creative mind you can make them. It's really simple, just space them out along the inner barrel. It helps to reduce wobbke/vibrations in your barrel.

- Dental floss mod, this ones easier to explain via YouTube video. But it just helps with your airseal.

There's a lot more DIY mods, but some are more complicated. If you really want to know type in the following things in google, airsoft TDC mod (top dead center), airsoft LRB mod, there's also a lot of different ways to stabilize your inner barrel, but some are..... interesting.

Alright that hopefully covers everything
(I'm really tired so I may have missed/mixed things up). Good luck, you may need to save up more money for this but you don't need to go with the exact parts I linked or the websites I linked from.